/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.dolphinscheduler.microbench.common;


import org.apache.dolphinscheduler.microbench.base.AbstractBaseBenchmark;
import org.openjdk.jmh.annotations.*;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * Enum values JMH test
 */
@Warmup(iterations = 2, time = 1)
@Measurement(iterations = 4, time = 1)
@State(Scope.Benchmark)
public class EnumBenchMark extends AbstractBaseBenchmark {

  @Benchmark
  public boolean simpleTest() {
    return Boolean.TRUE;
  }

  @Param({"101", "108", "103", "104", "105", "103"})
  private int testNum;


  @Benchmark
  @BenchmarkMode(Mode.AverageTime)
  @OutputTimeUnit(TimeUnit.MICROSECONDS)
  public void enumValuesTest() {
    TestTypeEnum.oldGetNameByType(testNum);
  }

  @Benchmark
  @BenchmarkMode(Mode.AverageTime)
  @OutputTimeUnit(TimeUnit.MICROSECONDS)
  public void enumStaticMapTest() {
    TestTypeEnum.newGetNameByType(testNum);
  }


  public enum TestTypeEnum {

    TYPE_101(101, "TYPE101"),
    TYPE_102(102, "TYPE102"),
    TYPE_103(103, "TYPE103"),
    TYPE_104(104, "TYPE104"),
    TYPE_105(105, "TYPE105"),
    TYPE_106(106, "TYPE106"),
    TYPE_107(107, "TYPE107"),
    TYPE_108(108, "TYPE108");

    private int code;
    private String name;

    public int getCode() {
      return code;
    }


    public String getName() {
      return name;
    }


    TestTypeEnum(int code, String name) {
      this.code = code;
      this.name = name;
    }

    private static final Map<Integer, TestTypeEnum> TEST_TYPE_MAP = new HashMap<>();

    static {
      for (TestTypeEnum testTypeEnum : TestTypeEnum.values()) {
        TEST_TYPE_MAP.put(testTypeEnum.code, testTypeEnum);
      }
    }

    public static void newGetNameByType(int code) {
      if (TEST_TYPE_MAP.containsKey(code)) {
        TEST_TYPE_MAP.get(code);
        return;
      }
      throw new IllegalArgumentException("invalid code : " + code);
    }

    public static void oldGetNameByType(int code) {
      for (TestTypeEnum testTypeEnum : TestTypeEnum.values()) {
        if (testTypeEnum.getCode() == code) {
          return;
        }
      }
      throw new IllegalArgumentException("invalid code : " + code);
    }
  }

}
